Power Window Control System (Diagnostics - Introduction): Diagnosis Toyota Highlander II рестайлинг

HOW TO PROCEED WITH TROUBLESHOOTING

HINT

1. Use the following procedure to troubleshoot the power window control system.
2. Techstream should be used in steps 4 and 6.

1. VEHICLE BROUGHT TO WORKSHOP NEXT: Go to next step
2. CUSTOMER PROBLEM ANALYSIS CHECK In troubleshooting, confirm that the problem symptoms have been accurately identified. Preconceptions should be discarded in order to make an accurate judgment. To clearly understand what the problem symptoms are, it is extremely important to ask the customer about the problem and the conditions at the time the malfunction occurred. Gather as much information as possible for reference. Past problems that seem unrelated may also help in some cases. The following 5 items are important points in the problem analysis: What Vehicle model, system name When Date, time, occurrence frequency Where Road conditions Under what conditions? Driving conditions, weather conditions How did it happen? Problem symptoms NEXT: Go to next step
3. INSPECT BATTERY VOLTAGE Measure the battery voltage. Standard voltage 11 to 14 V If the voltage is below 11 V, recharge or replace the battery before proceeding to the next step. NEXT: Go to next step
4. CHECK FOR DTC Check for DTCs and note any codes that are output. Refer to «DTC CHECK / CLEAR»(ref-422307-S20954728832011092600000) . Delete DTCs. Recheck for DTCs. Result Result Proceed to No DTCs output A DTCs output B Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-422307-S09964918602011092600000) B --> GO TO DIAGNOSTIC TROUBLE CODE CHART A: Go to next step
5. PROBLEM SYMPTOMS TABLE Result Result Proceed to Fault is not listed in problem symptoms table A Fault is listed in problem symptoms table B B --> GO TO STEP 7 A: Go to next step
6. OVERALL ANALYSIS AND TROUBLESHOOTING Data List/Active Test. Refer to «DATA LIST / ACTIVE TEST»(ref-422307-S27521024482011092600000) Circuit inspection Terminal of ECU. Refer to «TERMINALS OF ECU»(ref-422307-S02765178562011092600000) NEXT: Go to next step
7. ADJUST, REPAIR OR REPLACE NEXT: Go to next step
8. RESET POWER WINDOW MOTOR HINT: Refer to «INITIALIZATION»(ref-422307-S33663556452011092600000) . NEXT --> END

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1. CHECK WINDOW LOCK SWITCH Check that the front passenger side power window and rear power window operations are disabled when the window lock switch of the power window master switch is pressed. OK Front passenger side power window and rear power window operations are disabled. Check that the front passenger side power window and rear power windows can be operated when the window lock switch is pressed again. OK Front passenger side power window and rear power windows can be operated.
2. CHECK MANUAL UP/DOWN FUNCTION Check that the driver side power window operates as follows: OK Condition Master Switch Switch Operation Power Window Ignition switch on (IG) Driver side Pulled halfway up UP (Closed) Pushed halfway down DOWN (Open) Check that the power windows except the driver side power window operate as follows: OK Condition Switch Switch Operation Power Window Ignition switch on (IG) Window lock switch OFF Front passenger side Pulled up UP (Closed) Pushed down DOWN (Open) Rear LH Pulled up UP (Closed) Pushed down DOWN (Open) Rear RH Pulled up UP (Closed) Pushed down DOWN (Open)
3. CHECK AUTO UP/DOWN FUNCTION Check that the driver side power window operates as follows: OK Condition Master Switch Switch Operation Power Window Ignition switch on (IG) Driver side Pulled up fully UP (Closed) Pushed down fully DOWN (Open)
4. CHECK REMOTE MANUAL UP/DOWN FUNCTION Check that the power windows except the driver side power window operate as follows: OK Condition Master Switch Switch Operation Power Window Ignition switch on (IG) Window lock switch OFF Front passenger side Pulled up UP (Closed) Pushed down DOWN (Open) Rear LH Pulled up UP (Closed) Pushed down DOWN (Open) Rear RH Pulled up UP (Closed) Pushed down DOWN (Open)
5. CHECK POWER WINDOW OPERATION FUNCTION AFTER IGNITION SWITCH IS TURNED OFF Check that all the power windows can be operated with the power window master switch after the ignition switch is turned off. Check that the key-off operation function does not operate after the driver or passenger side door is opened. Check that all the power windows cannot be operated after more than approximately 45 seconds have elapsed since the ignition switch was turned off.
6. CHECK JAM PROTECTION FUNCTION (DRIVER DOOR POWER WINDOW) NOTE: The jam protection function can be activated when either the AUTO UP function or MANUAL UP function is used. Limbs, fingers or other body parts should not be used to test the jam protection function. Do not allow any body parts to get caught by the moving window or regulator. HINT: The jam protection function can be activated when either the AUTO UP function or MANUAL UP function is used with the ignition switch on (IG). The jam protection function can also be activated as long as the driver's door remains closed, within 45 seconds after the ignition switch is turned off. Check the reversing distance. Fully open the door glass. Place a check jig measuring 4 to 10 mm (0.16 to 0.40 in.) thick near the window fully closed position. When the door glass is closed using AUTO or MANUAL operation, check that the door glass goes down after contacting the check jig. The glass should go 200 to 240 mm (7.90 to 9.45 in.) away from the position where it contacted the check jig. While the door glass is going down, verify that the window switch cannot be used to make the glass go up. Check the reversing distance. Fully open the door glass. Place a check jig measuring 200 to 250 mm (7.90 to 9.84 in.) thick near the window fully closed position. When the door glass is closed using AUTO or MANUAL operation, check that the door glass goes down after contacting the check jig. The door glass should go 80 to 100 mm (3.15 to 3.94 in.) away from the position where it contacted the check jig. While the door glass is going down, verify that the window switch cannot be used to make the glass go up.
7. CHECK PTC OPERATION HINT: PTC operation is a function that prevents overloading of the power window regulator by stopping the motor. PTC operation activates when the power window regulator switch is operated for a predetermined amount of time. Pull up and hold the power window regulator switch for more than 90 seconds. Then release the switch. Check that pressing the switch does not move the window. Wait until 60 seconds have passed since the switch was released in the first step. Check that pressing the switch results in normal window movement.

PROBLEM SYMPTOMS TABLE

POWER WINDOW CONTROL SYSTEM

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1. CHECK POWER WINDOW ECU (DRIVER SIDE) Disconnect the H1 switch connector. Measure the voltage and resistance according to the value(s) in the table below. Standard resistance Tester Connection Wiring Color Terminal Description Condition Specified Condition H1-1 (E) - Body ground W-B - Body ground Ground Always Below 1 ohms Standard voltage Tester Connection Wiring Color Terminal Description Condition Specified Condition H1-2 (B) - Body ground SB - Body ground Power Supply Always 11 to 14 V If the result is not as specified, there may be a malfunction in the wire harness.
2. CHECK POWER WINDOW MASTER SWITCH Disconnect the H8 switch connector. Measure the voltage and resistance of each terminal according to the value(s) in the table below. Standard resistance Tester Connection Wiring Color Terminal Description Condition Specified Condition H8-1 (E) - Body ground W-B - Body ground Ground Always Below 1 ohms Standard voltage Tester Connection Wiring Color Terminal Description Condition Specified Condition H8-6 (B) - H8-1 (E) GR - W-B Power supply Ignition switch on (IG) 11 to 14 V Ignition switch off Below 1 V If the result is not as specified, there may be a malfunction in the wire harness. Reconnect the H8 switch connectors. Measure the voltage according to the value(s) in the table below. Standard voltage Tester Connection Wiring Color Terminal Description Condition Specified Condition H8-16 (U) - H8-1 (E) W - W-B Power window motor UP output Ignition switch on (IG), front passenger side power window switch OFF Below 1 V Power window switch UP (Manual operation) 11 to 14 V H8-15 (D) - H8-1 (E) R - W-B Power window motor DOWN output Ignition switch on (IG), front passenger side power window switch OFF Below 1 V Power window switch DOWN (Manual operation) 11 to 14 V H8-12 (U) - H8-1 (E) L - W-B Power window motor UP output Ignition switch on (IG), rear LH side power window switch OFF Below 1 V Power window switch UP (Manual operation) 11 to 14 V H8-13 (D) - H8-1 (E) P - W-B Power window motor DOWN output Ignition switch on (IG), rear LH side power window switch OFF Below 1 V Power window switch UP (Manual operation) 11 to 14 V H8-10 (U) - H8-1 (E) Y - W-B Power window motor UP output Ignition switch on (IG), rear RH side power window switch OFF Below 1 V Power window switch UP (Manual operation) 11 to 14 V H8-18 (D) - H8-1 (E) LG - W-B Power window motor DOWN output Ignition switch on (IG), rear RH side power window switch OFF Below 1 V Power window switch UP (Manual operation) 11 to 14 V If the result is not as specified, there may be a malfunction in the wire harness.
3. CHECK POWER WINDOW SWITCH (FRONT PASSENGER) Disconnect the G7 switch connector. Measure the voltage according to the value(s) in the table below. Standard voltage Tester Connection Wiring Color Terminal Description Condition Specified Condition G7-3 (B) - Body ground O - Body ground Power supply Ignition switch on (IG) 11 to 14 V Ignition switch off Below 1 V If the result is not as specified, there may be a malfunction in the wire harness. Reconnect the G7 switch connector. Measure the voltage according to the value(s) in the table below. Standard voltage Tester Connection Wiring Color Terminal Description Condition Specified Condition G7-4 (U) - Body ground G - Body ground Power window motor UP output Ignition switch on (IG), front passenger side power window switch OFF Below 1 V Power window switch UP (Manual operation) 11 to 14 V G7-1 (D) - Body ground Y - Body ground Power window motor DOWN output Ignition switch on (IG), front passenger side power window switch OFF Below 1 V Power window switch DOWN (Manual operation) 11 to 14 V If the result is not as specified, the power window switch may have a malfunction.
4. CHECK POWER WINDOW SWITCH (REAR LH) Disconnect the K2 switch connector. Measure the voltage according to the value(s) in the table below. Standard voltage Tester Connection Wiring Color Terminal Description Condition Specified Condition K2-3 (B) - Body ground G - Body ground Power supply Ignition switch on (IG) 11 to 14 V Ignition switch off Below 1 V If the result is not as specified, there may be a malfunction in the wire harness. Reconnect the K2 switch connector. Measure the voltage according to the value(s) in the table below. Standard voltage Tester Connection Wiring Color Terminal Description Condition Specified Condition K2-4 (U) - Body ground V - Body ground Power window motor UP output Ignition switch on (IG), rear LH side power window switch OFF Below 1 V Power window switch UP (Manual operation) 11 to 14 V K2-1 (D) - Body ground SB - Body ground Power window motor DOWN output Ignition switch on (IG), rear LH side power window switch OFF Below 1 V Power window switch DOWN (Manual operation) 11 to 14 V If the result is not as specified, the power window switch may have a malfunction.
5. CHECK POWER WINDOW SWITCH (REAR RH) Disconnect the J2 switch connector. Measure the voltage according to the value(s) in the table below. Standard voltage Tester Connection Wiring Color Terminal Description Condition Specified Condition J2-3 (B) - Body ground V - Body ground Power supply Ignition switch on (IG) 11 to 14 V Ignition switch off Below 1 V If the result is not as specified, there may be a malfunction in the wire harness. Reconnect the J2 switch connector. Measure the voltage according to the value(s) in the table below. Standard voltage Tester Connection Wiring Color Terminal Description Condition Specified Condition J2-4 (U) - Body ground SB - Body ground Power window motor UP output Ignition switch on (IG), rear RH side power window switch OFF Below 1 V Power window switch UP (Manual operation) 11 to 14 V J2-1 (D) - Body ground R - Body ground Power window motor DOWN output Ignition switch on (IG), rear RH side power window switch OFF Below 1 V Power window switch DOWN (Manual operation) 11 to 14 V If the result is not as specified, the power window switch may have a malfunction.

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1. DESCRIPTION The power window control system data can be read from the Data Link Connector 3 (DLC3) of the vehicle. When the system seems to be malfunctioning, use Techstream to check for malfunctions and perform repairs.
2. CHECK DLC3 Check the DLC3. Refer to «GENERAL INFORMATION»(ref-422289-S32263999802011092600000) .
3. INSPECT BATTERY VOLTAGE Measure the battery voltage. Standard voltage 11 to 14 V If the voltage is below 11 V, recharge or replace the battery before proceeding to the next step.
4. CHECK DIAGNOSIS HINT: If there is a malfunction in the pulse sensor, manually operating the power window switch will cause the power window switch light to blink. Turn the ignition switch on (IG). Manually operate the power window master switch or power window switch on each door. Check the blinking pattern of the AUTO light as shown in the illustration. If pattern (A) is displayed, check the wire harness or power window ECU. If pattern (B) is displayed, check the power window regulator motor or power window ECU. If the normal pattern is displayed, replace the power window regulator master switch.

DTC CHECK / CLEAR

1. CHECK DTC Connect Techstream to the DLC3. Turn the ignition switch on (IG). Check the DTC(s).
2. CLEAR DTC Connect Techstream to the DLC3. Turn the ignition switch on (IG). Clear the DTCs. Check that "DTCs are cleared" is displayed. NOTE: If any DTCs are output, troubleshoot those DTCs again.

DATA LIST / ACTIVE TEST

1. DATA LIST HINT: Using Techstream to read the DATA LIST allows values or status of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful because intermittent conditions or signals may be discovered before parts or wiring is disturbed. Reading the DATA LIST information early in troubleshooting is one way to save diagnostic time. WARNING: In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not. Connect Techstream to the DLC3. Turn the ignition switch on (IG). Turn on Techstream. Enter the following menus. Select: Body / D-Door Motor / DATA LIST. D-DOOR MOTOR: Tester Display Measurement Item/Range Normal Condition Diagnostic Note D Door P/W Auto SW Driver door power window auto switch signal/ON or OFF ON: Driver door power window auto switch operates OFF: Driver door power window auto switch does not operate - D Door P/W Up SW Driver door power window manual up switch signal/ON or OFF ON: Driver door power window manual up switch operates OFF: Driver door power window manual up switch does not operate - D Door P/W Down SW Driver door power window manual down switch signal/ON or OFF ON: Driver door power window manual down switch operates OFF: Driver door power window manual down switch does not operate - Glass Position (Close - 1/4) Jam protection operation within range of fully closed to 1/4 open window glass position/OK or CAUTION OK: Margin is sufficient during manual UP operation CAUTION: May be displayed even when no resistance is applied in each position. In this case, there is a foreign object stuck in that position. - Glass Position (1/4 - 2/4) Jam protection operation within range of 1/4 to 1/2 open window glass position/OK or CAUTION OK: Margin is sufficient during manual UP operation CAUTION: May be displayed even when no resistance is applied in each position. In this case, there is a foreign object stuck in that position. - Glass Position (2/4 - 3/4) Jam protection operation within range of 1/2 to 3/4 open window glass position/OK or CAUTION OK: Margin is sufficient during manual UP operation CAUTION: May be displayed even when no resistance is applied in each position. In this case, there is a foreign object stuck in that position. - Glass Position (3/4 - Open) Jam protection operation within range of 3/4 to fully open window glass position/OK or CAUTION OK: Margin is sufficient during manual UP operation CAUTION: May be displayed even when no resistance is applied in each position. In this case, there is a foreign object stuck in that position. - Number of Trouble codes Number of DTC recorded / min.: 0, max.: 255 Min.: 0 Max.: 255 - Select: Body / Main Body / DATA LIST. MAIN BODY: Tester Display Measurement Item/Range Normal Condition Diagnostic Note Communication D Door Motor Connection status between power window regulator motor assembly (driver door) and main body ECU (Instrument panel junction block)/OK/Stop OK: Communication is normal STOP: Communication is stopped - D Door Courtesy SW Driver side door courtesy switch signal/ON or OFF ON: Driver side door is open OFF: Driver side door is closed
2. ACTIVE TEST HINT: Using Techstream to perform ACTIVE TESTS allows relays, VSVs, actuators and other items to be operated without removing any parts. This non-intrusive functional inspection can be very useful because intermittent operation may be discovered before parts or wiring is disturbed. Performing Active Tests early in troubleshooting is one way to save diagnostic time. DATA LIST information can be displayed while performing ACTIVE TESTS. Connect Techstream to the DLC3. Turn the ignition switch on (IG). Turn on Techstream. Enter the following menus. Select: Body / D-Door Motor / Active Test. D-DOOR MOTOR: Tester Display Test Part Control Range Diagnostic Note Power Window Power window UP or OFF - Power Window Power window DOWN or OFF - Select: Body / Main Body / Active Test. MAIN BODY: Tester Display Test Part Control Range Diagnostic Note IG OFF P/W Control Permission Output Power window ON or OFF (After ignition switch is turned off)

DIAGNOSTIC TROUBLE CODE CHART

POWER WINDOW CONTROL SYSTEM